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Rasek [7]
3 years ago
12

MATH show you work pleaseee i really need this.

Mathematics
2 answers:
dlinn [17]3 years ago
8 0

Answer:

The answer for 1 is B and the answer for 2 is A

Step-by-step explanation:

Because 8-5=3 and 3/3=1 And for 2 -4x6= -24 + 29 = 5

Hope it helps! ^w^

larisa86 [58]3 years ago
3 0

Answer:

1) B 2) A

Step-by-step explanation:

8-5=3 and 3/3=1 And for 2 -4x6= -24 + 29 - Angel <3

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What is the slope of the points (0,5) and (2,12).
prisoha [69]
3.5, y2-y1 / x2-x1 or rise/run
5 0
3 years ago
a plane took 3 hours and 33 minutes to finish a journey. if the distance of the journey was 2840 miles, at what average speed di
likoan [24]

Answer:

The average speed of the plain was 800 miles/h.

Step-by-step explanation:

To solve this problem we first need to convert the time the tain took to finish the journey to hours. To do that we will divide the part that is in minutes by 60 and sum to the part that is in hours, we have:

time = 3 + 33/60 = 3 + 0.55 = 3.55 hours

The average speed is given by the following formula:

average speed = distance/time

average speed = 2840/3.55 = 800 miles/h

The average speed of the plain was 800 miles/h.

4 0
2 years ago
). If a, ß are zeroes of the quadratic polynomial p(x)=kx²+4x+4 such
natta225 [31]

Answer:

The values of k are 2/3 and -1

Step-by-step explanation:

Product of zeros = αβ= constant  / coefficient of x^2 =  4/k

Sum of zeros =α+β = - coefficient of x / coefficient of x^2= -4/k

Given

Consider a= α and b= β

(\alpha)^2 + (\beta)^2 = 24

(\alpha)^2 + (\beta)^2 can be written as (\alpha)^2 + 2(\alpha)(\beta) + (\beta)^2 if we add \pm 2 (\alpha)(\beta) in the above equation.

(\alpha)^2 + 2(\alpha)(\beta) + (\beta)^2 -2(\alpha)(\beta)

(\alpha + \beta)^2 -2(\alpha)(\beta)

Putting values of αβ and α+β

(\frac {-4}{k})^2 -2( \frac {4}{k}) = 24\\\frac {16}{k^2} - \frac {8}{k} = 24\\Multiplying\,\, the \,\, equation\,\, with\,\, 8K^2\\ 2 - k= 3K^2\\3k^2-2+k=0\\or\\3k^2+k-2=0\\3k^2+3k-2k-2=0\\3k(k+1)-2(k+1)=0\\(3k-2)(k+1)=0\\3k-2=0 \,\,and\,\, k+1 =0\\k= 2/3 \,\,and\,\, k=-1

The values of k are 2/3 and -1

8 0
3 years ago
What is the slope and y- intercept?​
Anit [1.1K]

Answer:

y=2/3x+1

Step-by-step explanation:

y int= 1,

using rise/run for slope, 2/3=m

4 0
3 years ago
X – 10y = 18<br> -6x – 10y = 32
viva [34]

Answer:

Step-by-step explanation:

x - 10y = 18

-6x - 10y = 32

Since both equations have -10y, we can subtract the second equation from the first to try and solve for x:

(x - 10y) - (-6x - 10y) = 18 - 32

x - 10y + 6x + 10y = -14

7x = -14

x = -2

With this, we can plug the value back into the first equation to solve for y:

(-2) - 10y = 18

-2 - 10y = 18

-10y = 20

y = -2

Therefore, the solution is x = -2, y = -2

8 0
3 years ago
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